int main()
{
int a[5];
while (~scanf("%d%d%d%d%d", &a[0], &a[1], &a[2], &a[3], &a[4]))
{
mem(sum); index = 1;
mem(hash); mem(next);
int i, j, k, count = 0;
for (i = -50; i <= 50; i++)if (i != 0)
for (j = -50; j <= 50; j++)if (j != 0)
for (k = -50; k <= 50; k++)if (k != 0)
insert(a[0] * lf(i) + a[1] * lf(j) + a[2] * lf(k));
for (i = -50; i <= 50; i++)if (i != 0)
for (j = -50; j <= 50; j++)if (j != 0)
count += is_find((-a[3])*lf(i) - a[4] * lf(j));
printf("%d\n", count);
}
return 0;
}
/*
* Incremental Search.
* dir is used as the initial direction to search.
* ^S switch direction to forward
* ^R switch direction to reverse
* ^Q quote next character (allows searching for ^N etc.)
* <ESC> exit from Isearch
* <DEL> undoes last character typed. (tricky job to do this correctly).
* other ^ exit search, don't set mark
* else accumulate into search string
*/
static int
isearch(int dir)
{
struct line *clp; /* Saved line pointer */
int c;
int cbo; /* Saved offset */
int success;
int pptr;
int firstc;
int xcase;
int i;
char opat[NPAT];
int cdotline; /* Saved line number */
#ifndef NO_MACRO
if (macrodef) {
ewprintf("Can't isearch in macro");
return (FALSE);
}
#endif /* !NO_MACRO */
for (cip = 0; cip < NSRCH; cip++)
cmds[cip].s_code = SRCH_NOPR;
(void)strlcpy(opat, pat, sizeof(opat));
cip = 0;
pptr = -1;
clp = curwp->w_dotp;
cbo = curwp->w_doto;
cdotline = curwp->w_dotline;
is_lpush();
is_cpush(SRCH_BEGIN);
success = TRUE;
is_prompt(dir, TRUE, success);
for (;;) {
update();
switch (c = getkey(FALSE)) {
case CCHR('['):
/*
* If new characters come in the next 300 msec,
* we can assume that they belong to a longer
* escaped sequence so we should ungetkey the
* ESC to avoid writing out garbage.
*/
if (ttwait(300) == FALSE)
ungetkey(c);
srch_lastdir = dir;
curwp->w_markp = clp;
curwp->w_marko = cbo;
curwp->w_markline = cdotline;
ewprintf("Mark set");
return (TRUE);
case CCHR('G'):
if (success != TRUE) {
while (is_peek() == SRCH_ACCM)
is_undo(&pptr, &dir);
success = TRUE;
is_prompt(dir, pptr < 0, success);
break;
}
curwp->w_dotp = clp;
curwp->w_doto = cbo;
curwp->w_dotline = cdotline;
curwp->w_rflag |= WFMOVE;
srch_lastdir = dir;
(void)ctrlg(FFRAND, 0);
(void)strlcpy(pat, opat, sizeof(pat));
return (ABORT);
case CCHR('S'):
if (dir == SRCH_BACK) {
dir = SRCH_FORW;
is_lpush();
is_cpush(SRCH_FORW);
success = TRUE;
}
if (success == FALSE && dir == SRCH_FORW) {
/* wrap the search to beginning */
curwp->w_dotp = bfirstlp(curbp);
curwp->w_doto = 0;
curwp->w_dotline = 1;
if (is_find(dir) != FALSE) {
is_cpush(SRCH_MARK);
success = TRUE;
}
ewprintf("Overwrapped I-search: %s", pat);
break;
}
is_lpush();
pptr = strlen(pat);
(void)forwchar(FFRAND, 1);
if (is_find(SRCH_FORW) != FALSE)
is_cpush(SRCH_MARK);
else {
(void)backchar(FFRAND, 1);
ttbeep();
success = FALSE;
ewprintf("Failed I-search: %s", pat);
}
is_prompt(dir, pptr < 0, success);
break;
case CCHR('R'):
if (dir == SRCH_FORW) {
dir = SRCH_BACK;
is_lpush();
is_cpush(SRCH_BACK);
success = TRUE;
}
if (success == FALSE && dir == SRCH_BACK) {
/* wrap the search to end */
curwp->w_dotp = blastlp(curbp);
curwp->w_doto = llength(curwp->w_dotp);
curwp->w_dotline = curwp->w_bufp->b_lines;
if (is_find(dir) != FALSE) {
is_cpush(SRCH_MARK);
success = TRUE;
}
ewprintf("Overwrapped I-search: %s", pat);
break;
}
is_lpush();
pptr = strlen(pat);
(void)backchar(FFRAND, 1);
if (is_find(SRCH_BACK) != FALSE)
is_cpush(SRCH_MARK);
else {
(void)forwchar(FFRAND, 1);
ttbeep();
success = FALSE;
}
is_prompt(dir, pptr < 0, success);
break;
case CCHR('W'):
/* add the rest of the current word to the pattern */
clp = curwp->w_dotp;
cbo = curwp->w_doto;
firstc = 1;
if (pptr == -1)
pptr = 0;
if (dir == SRCH_BACK) {
/* when isearching backwards, cbo is the start of the pattern */
cbo += pptr;
}
/* if the search is case insensitive, add to pattern using lowercase */
xcase = 0;
for (i = 0; pat[i]; i++)
if (ISUPPER(CHARMASK(pat[i])))
xcase = 1;
while (cbo < llength(clp)) {
c = lgetc(clp, cbo++);
if ((!firstc && !isalnum(c)))
break;
if (pptr == NPAT - 1) {
ttbeep();
break;
}
firstc = 0;
if (!xcase && ISUPPER(c))
c = TOLOWER(c);
pat[pptr++] = c;
pat[pptr] = '\0';
/* cursor only moves when isearching forwards */
if (dir == SRCH_FORW) {
curwp->w_doto = cbo;
curwp->w_rflag |= WFMOVE;
update();
}
}
is_prompt(dir, pptr < 0, success);
break;
case CCHR('H'):
case CCHR('?'):
is_undo(&pptr, &dir);
if (is_peek() != SRCH_ACCM)
success = TRUE;
is_prompt(dir, pptr < 0, success);
break;
case CCHR('\\'):
case CCHR('Q'):
c = (char)getkey(FALSE);
goto addchar;
case CCHR('M'):
c = CCHR('J');
goto addchar;
default:
if (ISCTRL(c)) {
ungetkey(c);
curwp->w_markp = clp;
curwp->w_marko = cbo;
curwp->w_markline = cdotline;
ewprintf("Mark set");
curwp->w_rflag |= WFMOVE;
return (TRUE);
}
/* FALLTHRU */
case CCHR('I'):
case CCHR('J'):
addchar:
if (pptr == -1)
pptr = 0;
if (pptr == 0)
success = TRUE;
if (pptr == NPAT - 1)
ttbeep();
else {
pat[pptr++] = c;
pat[pptr] = '\0';
}
is_lpush();
if (success != FALSE) {
if (is_find(dir) != FALSE)
is_cpush(c);
else {
success = FALSE;
ttbeep();
is_cpush(SRCH_ACCM);
}
} else
is_cpush(SRCH_ACCM);
is_prompt(dir, FALSE, success);
}
}
/* NOTREACHED */
}